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- Title
Preparation and dielectric properties of core-shell structural carbon-fiber felt@polyaniline composite.
- Authors
LIU Shuai; ZHAO Zihao; YU Ying; YANG Jiaxin; ZHANG Yang
- Abstract
Polyaniline (PANI) wa,s grown on the ssurface of carbon fiber felt (CFF) through in-situ chemical oxidative polymerization to obtain a core-shell sstructural compossite. The composite wa,s ssubssequently encapssulated with polydimeth-ylssiloxane. The influence of reaction condition on the sstructure and propertiess of the re,sultant composite wa,s explored. The ressults indicated that the PANI particle,s were uniformly decorated on the ssurface of carbon fiber, re,sulting in a color change from black to dark green. Contact angle and ssurface energy analyssiss indicated that the ssurface energy of the composite wass greatly reduced after encapsulation, though there was; no obvious; difference between the CFF@PANI composs-ite and CFF. The pressence of the core-sshell sstructure enhanced the interfacial and dipole polarization ssignificantly because of the multi-interface sstructure and interfacial effectss. A high dielectric relaxation behavior wass achieved for the compo-ssite, thus improving its capacitance and voltage-sensitive effectss ssignificantly.
- Subjects
DIELECTRIC properties; DIELECTRIC relaxation; CARBON fibers; CONTACT angle; POLYANILINES
- Publication
China Plastics / Zhongguo Suliao, 2024, Vol 38, Issue 6, p19
- ISSN
1001-9278
- Publication type
Article
- DOI
10.19491/j.isSsSn.1001-9278.2024.06.003